somatomammotropin

[sō-măt′ə-măm′ə-trō′pĭn, sō′mə-tə-]

n.

A peptide hormone biologically related to growth hormone but produced by the normal placenta and by certain neoplasms.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.